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Risk factors
By Mayo Clinic staffAnyone can be born with a brain AVM, but AVMs are more common in boys than in girls.
Symptoms of AVM are more likely to occur before age 50. Brain AVM can damage brain tissue over time. The effects slowly build up, sometimes causing symptoms in early adulthood. Once you reach middle age, however, brain AVMs tend to remain stable and are less likely to cause symptoms.
For women, pregnancy may start or worsen symptoms because of the increased blood flow and blood volume during pregnancy.
- Chung CS, et al. Stroke and other neurovascular disorders. In: Goetz CG. Textbook of Clinical Neurology. 3rd ed. Philadelphia, Pa.: Elsevier Saunders; 2007. http://www.mdconsult.com/das/book/body/113422743-8/782331384/1488/384.html#4-u1.0-B978-1-4160-3618-0..10045-1--s0670_3824. Accessed Dec. 11, 2008.
- Arteriovenous malformations and other vascular lesions of the central nervous system fact sheet. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/avms/detail_avms.htm. Accessed Dec. 11, 2008.
- Higashida RT. What is an arteriovenous malformation (AVM)? American Stroke Association. http://www.americanheart.org/downloadable/stroke/1095279678689What_Is_an_Arteriovenous_Malformation_Final%20Science%20review%206-03-03%20vF3.pdf. Accessed Dec. 11, 2008.
- Singer RJ, et al. Brain arteriovenous malformations. http://www.uptodate.com/home/index.html. Accessed Dec. 11, 2008.
- Aminoff MJ. Nervous system disorders. In: McPhee SJ, et al. Current Medical Diagnosis and Treatment. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/content.aspx?aID=12814. Accessed Dec. 11, 2008
